.operation {
    /*width: 250px;*/
    /*display: flex;*/
    /*align-items: center;*/
    /*justify-content: space-between;*/

    .confirm {
        background-color: #409EFF;
        color: white;
    }

    .back {
        background-color: #728CB2;
        color: white;
        margin-left: 20px;
    }
}